tony1992 Posted October 12, 2008 Share Posted October 12, 2008 Brought the car in for a power steering leak Lexus, changed out ram, then said the pump is bad (because the steering locked up on a test drive). I went to pick up the car and fluid was still leaking. The changed out the ram again, and the pump again and installed new lines. Now I dont have a lead but the steering no longer feels controlled, it feels like a chevy not a quality rack and pinion steering. You can turn from stop to stop with little finger and 0 pressure. Any ideas before I bring it back. I dont have a lot of faith in this dealer as it took them over 3 weeks to resolve the issue.(if it is resolved. Input please Quote Link to comment Share on other sites More sharing options...
1990LS400 Posted October 12, 2008 Share Posted October 12, 2008 Your 92 SC has "Vehicle-speed-sensing, progressive power-assisted rack-and-pinion. 3.1 turns, lock to lock." according to the specs at http://www.lexus.com/contact/pdf/1992/1992SCspecs.pdf When you are stopped or driving at very low speeds, the steering from lock to lock should require very little effort but it should require more effort and give a little bit more "feel" as speed increases. I assume you were stopped when experiencing this "0 pressure" since one can't easily turn the steering wheel completely from lock to lock while driving. Tire pressure makes a difference too. The tires on my 00 LS were at 28 psi Friday morning due to the cooler temperatures and I could immediately feel a difference in steering effort (it became lighter) after I increased the tire pressure only 3 psi to 31 psi. I don't know about the 92 SC but my 90 LS steering was extremely light and lighter in feel than on my 00 LS. I suspect some of that difference was because the contact patch of the standard 205/65-15 tires on the 90 was smaller than the contact patch of the 225/60-16 of my 00 LS. The difference was particularly noticeable as I switched back and forth between driving the two cars over a period of weeks before selling the 90. I don't know how the "vehicle-speed-sensing" feature works. I suppose there could be a problem on your car with this feature. Have you had your SC a long time? Just curious. Quote Link to comment Share on other sites More sharing options...
tony1992 Posted October 18, 2008 Author Share Posted October 18, 2008 Your 92 SC has "Vehicle-speed-sensing, progressive power-assisted rack-and-pinion. 3.1 turns, lock to lock." according to the specs at http://www.lexus.com/contact/pdf/1992/1992SCspecs.pdfWhen you are stopped or driving at very low speeds, the steering from lock to lock should require very little effort but it should require more effort and give a little bit more "feel" as speed increases. I assume you were stopped when experiencing this "0 pressure" since one can't easily turn the steering wheel completely from lock to lock while driving. Tire pressure makes a difference too. The tires on my 00 LS were at 28 psi Friday morning due to the cooler temperatures and I could immediately feel a difference in steering effort (it became lighter) after I increased the tire pressure only 3 psi to 31 psi. I don't know about the 92 SC but my 90 LS steering was extremely light and lighter in feel than on my 00 LS. I suspect some of that difference was because the contact patch of the standard 205/65-15 tires on the 90 was smaller than the contact patch of the 225/60-16 of my 00 LS. The difference was particularly noticeable as I switched back and forth between driving the two cars over a period of weeks before selling the 90. I don't know how the "vehicle-speed-sensing" feature works. I suppose there could be a problem on your car with this feature. Have you had your SC a long time? Just curious. Quote Link to comment Share on other sites More sharing options...
tony1992 Posted October 18, 2008 Author Share Posted October 18, 2008 Your 92 SC has "Vehicle-speed-sensing, progressive power-assisted rack-and-pinion. 3.1 turns, lock to lock." according to the specs at http://www.lexus.com/contact/pdf/1992/1992SCspecs.pdfWhen you are stopped or driving at very low speeds, the steering from lock to lock should require very little effort but it should require more effort and give a little bit more "feel" as speed increases. I assume you were stopped when experiencing this "0 pressure" since one can't easily turn the steering wheel completely from lock to lock while driving. Tire pressure makes a difference too. The tires on my 00 LS were at 28 psi Friday morning due to the cooler temperatures and I could immediately feel a difference in steering effort (it became lighter) after I increased the tire pressure only 3 psi to 31 psi. I don't know about the 92 SC but my 90 LS steering was extremely light and lighter in feel than on my 00 LS. I suspect some of that difference was because the contact patch of the standard 205/65-15 tires on the 90 was smaller than the contact patch of the 225/60-16 of my 00 LS. The difference was particularly noticeable as I switched back and forth between driving the two cars over a period of weeks before selling the 90. I don't know how the "vehicle-speed-sensing" feature works. I suppose there could be a problem on your car with this feature. Have you had your SC a long time? Just curious. Sorry about the duplicate entries, I am attempting to navigate thu the system. (next time I will read the instructions) I have had the 92 about a year. I bought it from a friend who had it in his garage for a few years. Its been a delight with the exception of problems you would expect with a 16 year old vehicle. I will have printed the knowlege center info you suggested and will bring it up to the dealership. thanks Quote Link to comment Share on other sites More sharing options...
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